This mouse works like a charm the second you plug the usb adapter into your computer. I have had no issues. I have bigger hands so it is slightly small but still is an improvement over the laptop mouse pad! The added functionality of the roller clicking forward and backwards is a nice bonus.

Bought this to use with my laptop since don't like using touchpads. It's small enough to pack but not in a laptop pouch. The rubber sides make it easy to hold and after a while I got used to the small size. About as good as you can get for a small mouse. The scroll whell however does not provide the tactile and responsive feel of clicks as you use it. I prefer the sense that I'm rolling the wheel over small bumps in order to gauge how much I scroll a screen view. Also, because the mouse is small by design, the left and right side-tilting function of the scroll wheel (to allow backwards and forwards movement through web pages) made it difficult to hold on to the mouse with any degree of control. The pamphlet that came with the mouse not particularly helpful.